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-rw-r--r--test/ruby/test_iseq.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/ruby/test_iseq.rb b/test/ruby/test_iseq.rb
index edd131823e..7125a5ac6d 100644
--- a/test/ruby/test_iseq.rb
+++ b/test/ruby/test_iseq.rb
@@ -464,6 +464,11 @@ class TestISeq < Test::Unit::TestCase
a1 = iseq.to_a
a2 = iseq2.to_a
assert_equal(a1, a2, message(mesg) {diff iseq.disassemble, iseq2.disassemble})
+ if iseq2.script_lines
+ assert_kind_of(Array, iseq2.script_lines)
+ else
+ assert_nil(iseq2.script_lines)
+ end
iseq2
end